Question

The value of force acting per unit area is called __________?
1. Joule
2. Force
3. Pressure
4. Energy

Answer 1

Correct Answer - Option 3 : Pressure

CONCEPT:

• Force: The interaction which after applying on a body changes or try to change the state of rest or state of motion of the body is called force.

Force (F) = Mass (m) × acceleration (a) 

• Pressure (P): The force per unit area is called pressure.

Pressure (P) = Force (F)/Area (A)

• Energy (E): The capacity for doing work is called energy.
  • The SI unit of energy is the joule (J).

EXPLANATION: 

• The force per unit area is called pressure. So option 3 is correct.